The following minimum requirements are recommended for the best performance levels and experience with our software. Installing our software on computers that do not meet these requirements is possible but will result in a lower-quality user experience, and in particular slower performance.

Operating system requirements

Microsoft® Windows® 8, 8.1, 10 All versionsRTM Versions:

32-bit processor, 2 GB RAM

64-bit processor, 4 GB RAM

2 GHz or faster processor

250MB of available hard-disk space (100MB for ZoneAlarm free firewall)

Microsoft® Windows® 7: SP0 or SP1All Versions:

32-bit / 64-bit, 2 GB RAM

2 GHz or faster processor

250MB of available hard-disk space (100MB for ZoneAlarm free firewall)

Microsoft Windows Vista SP2All Versions:

32-bit / 64-bit, 2 GB RAM

2 GHz or faster processor

250MB of available hard-disk space (100MB for ZoneAlarm free firewall)

Microsoft Windows, XP SP2 or SP3Home / Professional:

32-bit, 1GB RAM

1 GHz or faster processor

250MB of available hard-disk space(100MB for ZoneAlarm free firewall)

Microsoft .NET Framework 3.5 or later: Required to run ZoneAlarm.If the required .NET Framework version is not already installed, the ZoneAlarm installation program automatically installs .NET on your computer.